water leak detection study Articles

Service: Sahara Leak Detection Client: Dallas Water Utilities (DWU) Department of Public Works Type of Pipeline: Raw Water Transmission Main Diameter: 108-inch Pipe Material: PCCP Length: 7.3 miles The City of Dallas Water Utilities (DALW) currently draws its raw water from six sources: the Elm Fork of the Trinity River and Lakes Ray Roberts, Lewisville, Grapevine, Ray ...

Introduction Albstadt is a town located in southwest Germany, about 80km south of Stuttgart. Albstadtwerke are the utility network distribution provider in this region supplying potable water, natural gas and electricity. In addition to managing and maintaining the local distribution assets in Albstadt, Albstadtwerke operate and maintain two more potable water distribution ...

With over 300 sensors and systems sold world-wide and over 35 scientific users publications, Franatech is market leader for underwater methane detection and monitoring. Franatech is a developer and supplier of sensors for detection of gases in water. The company has more than 15 years experience in subsea applications, working with all kinds of sensing technologies. Coming from a scientific ...

Small leaks sink big ships – the same can be said for large-diameter pipes in utility networks. While large leaks or ruptures are seen as newsworthy stories accompanied by images of water flowing down the streets; smaller leaks can often be more devastating. Left undetected, they can add up over time, contributing significantly to ...

In 2006 the Calgary Water Authority in Canada engaged a British consultancy firm called “Hydrosave” to assist them reduce their leakage from 12% of all water supplied and ILI ratings of 4 – 8 between the different DMAs. The temperature in Calgary gets down to -40 degrees Celcius in the winter and the water board’s staff are fully occupied in winter, however in summer ...

Introduction Defiant’s FROG 4000, a portable GCPID system, was used to identify and determine the concentration of chlorinated alkenes in several extraction wells located in Tacoma Washington. Split samples were taken at each well and sent to an offsite lab for analysis. This case study examines the field exercise and highlights the high degree of agreement between the offsite lab and ...

In this paper, a nominal sensor placement methodology for leak location in water distribution networks is presented. To reduce the size and the complexity of the optimization problem a clustering technique is combined with the nominal sensor placement methodology. Some of the pressure sensor placement methods for leak detection and location in water distribution networks are based on the ...

Service: Leak Detection Client: North Texas Municipal Water District Type of Pipeline: Transmission Main Diameter: 42-inch Pipe Material: PCCP Length: 0.186 miles The North Texas Municipal Water District (NTMWD) provides water, wastewater, and solid waste disposal services on a regional basis to its 13 Member and 61 Customer Cities. NTMWD operates over 375 miles of water ...

This exploration survey used the cross-hole resistivity method to detect if there was industrial waste water leakage from an industrial waste water process pond. Chemical analyses concluded that this specific waste water has a much lower resistivity than normal water. The figure below shows that the area above 45m is a relatively high resistive zone made of limestone. Below this depth is a middle ...

We report on the design, deployment, and use of TaKaDu, a real-time algorithmic Water Infrastructure Monitoring solution, with a strong focus on water loss reduction and control. TaKaDu is provided as a commercial service to several customers worldwide. It has been in use at HaGihon, the Jerusalem utility, since mid 2009. Water utilities collect considerable real-time data from their networks, ...

Our Solution: The mai application suite was deployed side by side with an existing PLC network. The company installed individual meters for water, electricity and gas at strategic locations around the site. mai was used to analyze and deliver to relevant personnel daily, weekly, monthly and year to date information in a timely manner. Through mai functionality, the company was able to ...

When the EPA revealed the results of its study in July on the increasing presence of substantial corrosion in diesel fuel tanks, it proved that the problem is much larger than anyone anticipated. The facts are staggering: 83%of the diesel tank systems exhibited moderate-to-severe corrosion. 75%of the owner/operators of those diesel tanks had no idea it was ...

Sahara technology is winning accolades from satisfied owners and operators of buried infrastructure the world over. In North America, two recent projects demonstrate the benefits of using this in-line tethered tool for critical leak detection surveys, especially when speed and accuracy are paramount. ...

Ajoint venture between ACI Energy, Inc., an investment holding company, and Altela, Inc., a water desalination company, Clarion Altela Environmental Services (CAES) opened in November 2012 to recycle frac water * from the Marcellus and Utica Shale Basins, which stretch across much of Pennsylvania and Ohio. The CAES facility treats the frac water and ultimately turns it into clean distilled water ...

Abstract In this paper information from Water Authorities in the USA, Europe, Middle East and Australia that have purchased permanent monitoring leak detection equipment is reviewed and the findings are presented in a structured format that covers the following: Justification for permanent monitoring Evaluating the different product offerings ...

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